fmt.Fprintln(&b, "// Code generated by mksizeclasses.go; DO NOT EDIT.")
	fmt.Fprintln(&b, "//go:generate go run mksizeclasses.go")
	fmt.Fprintln(&b)
	fmt.Fprintln(&b, "package runtime")
	classes := makeClasses()

	printComment(&b, classes)

	printClasses(&b, classes)

	out, err := format.Source(b.Bytes())
	if err != nil {
		log.Fatal(err)
	}
	if *stdout {
		_, err = os.Stdout.Write(out)
	} else {

			} else {
				fmt.Fprintf(tabw, " \t%.1f%s:\t %s\n", f, u, t.Name)
			}
		}
		fmt.Fprintln(tabw)
	}
	return tabw.Flush()
}

// printComments prints all freeform comments in the profile.
func printComments(w io.Writer, rpt *Report) error {
	p := rpt.prof

	for _, c := range p.Comments {
		fmt.Fprintln(w, c)
	}
	return nil
}